Abstract: An electric saw (2) includes a stroke arrangement (4) driven in a reciprocating manner and having a tool receptacle (8) for a saw blade (10), a housing (14) which extends along a stroke axis (A) of the stroke arrangement (4) and which forms at a working tool-side end (12) a housing opening (16) from which the stroke arrangement (4) projects, and which forms a receiving space (26) in which is arranged a motion transforming device (24), the stroke arrangement (4) being supported at the housing (14) by a bearing element (30) which forms a sliding bearing (28) and is arranged between the motion transforming device (24) and the housing opening (16), with an air flow (L) being directed toward the housing opening (16) so that particles (P) can be prevented from entering the sliding bearing (28), with the bearing element (30) limiting the receiving space (26) toward the housing opening (16), and with a flow path (46) by which the air flow (L) is guided being provided at an outer side (40) of the bearing element (30)

Abstract: A universal motor (2) includes at least two carbon brushes (36) contacting the commutator (14), a ventilation device (12) for producing a cooling flow (K), and a dust protection arrangement for preventing penetration of material particles (M) into the commutation region (34) and including at least one guide member (26) that provides for delivering of the material particles (M) in the cooling flow (K), with the at least one guide member (26) having a smooth concave guide surface (28) located between the two carbon brushes (36) and extending adjacent to an outer surface (30) of the commutator (14) and toward a suction opening (22) connected with the cooling flow path (24).

Abstract: A suction device (11) for a hammer drill (6) has a first end (12) with a securing device (14) for securing the suction device (11) to the hammer drill (6) and a second end (13) opposite first end (12) and which has a contact area (15) with which the suction device (11) contacts a constructional component, the suction device (11) further having a receiving space (20) which at least partially encloses a working tool (7) of the pick power tool (6), and being provided with a connection device (18) for a vacuum source. A retaining element (21) having a through-opening (22) for the working tool (7) and a plurality of suction openings (23) is provided in an area (19) of the second end (13).

Abstract: A suction device for a pick power tool includes a securing device provided at the first axial end of the suction device for securing the suction device (11) on the pick power tool (6), a connection element(17) for a vacuum source inclined to the longitudinal axis (14) of the suction device (11), and a first baffle wall (21) and at least one further baffle wall (26) spaced from the first baffle wall (21), with the first baffle wall being located between the connection element (17) and the first end (12) of the suction device (11) and the at least one further baffle wall (21) being located between the first baffle wall and the first end (12), and the first baffle wall (21) and the second baffle wall (26) each having, respectively, a through-opening (22, 27) for the working tool (7) of the pick power tool (6).

Abstract: A hand-held power tool includes a chuck (3) for receiving an axially displaceable, within limits, percussion working tool (2) and mounted on the tool work spindle (4) having a coaxial die (5) located in its interior for imparting blows to the percussion working tool (2), and at least one cooling air channel (7) extending in the outer housing (6) radially outwardly of the work spindle and opening into a free space (8) of the chuck (3) which adjoins the work spindle (4), communicates with the interior of the work spindle through an opening (10, 10?) formed in the work spindle, and flowtight sealed from outside by a seal.

Abstract: An electrical hand-held tool (1) includes a working tool-side assembly (2) located in the tool outer housing (3), a cooling fan (4) also located in the outer housing (3), at least one cooling air conduit (5) extending between a working tool-side end of the assembly (2) and the cooling fan (4), and barrier element (7) provided on a cooling fan-side of the cooling air conduit (5) in the vicinity of the cooling fan (4) and having a barrier opening (14) that opens toward the cooling fan (4).

Abstract: A coarse separator (10) for a power tool (2) is used for separating, at least partially, from an air flow (L), material particles (M) produced during operation of the power tool (2) and aspirated by a suction device (8), and includes an inlet opening (48) connectable with the suction head (6) of a suction device (8) that aspirates the particles, an outlet opening (40) for letting a purified air flow (L) out, and a lamella separator arranged between the inlet opening (48) and the outlet opening (40).

Abstract: A drill stand for a portable core drill has a base plate (2) with an elongate opening (3) for securing the base plate (2) on a workpiece and with at least one reinforcing chamber (8a, 8b) that is closed along its edges extending parallel to the longitudinal axis (A) of the annular core bit of the core drill.

Abstract: A grinding tool comprising a housing (1) and a motor-driven driver spindle (2) equipped with a tool receptacle (4) at a free end (3) projecting from the housing (1). An extraction hood (5) is connected to the housing (1), encloses the free end (3) of the driver spindle (2) and open towards the tool receptacle (4). The extraction hood (5) comprises an upper part (6) and a bottom part (7) connected therewith and opening towards the tool receptacle (4). The upper part (6) is pivotable about the longitudinal axis (L) of the driver spindle (2) and is mounted on the housing (1) immovably oriented with the longitudinal direction (L).

Abstract: A grinding wheel has a flat, circular carrier surface (1) on which a plurality of elongated grinding members (2) are arranged running least partially radially. A discharge opening (3) is disposed ahead of each of the grinding members (2) in the circumferential direction (U). Furthermore, the carrier surface (1) has a basically truncated conical central depression (4) facing away from the grinding members (2). The discharge openings (3) abut the L-shaped grinding members (2) in a direction of rotation (D) and extend approximately over the entire length of the grinding members (2).

Abstract: A grinding device comprising a motor (2) driven drive shaft (4) projecting from a housing (1). The drive shaft (4) passes through a bearing unit (5). A tool receptacle (8) is provided at a free end (7) of the drive shaft (4) for removably attaching a tool (9), in particular a grinding wheel. A suction hood (11) abuts the housing (1) and encloses the free end (7) of the drive shaft (4). The suction hood (11) comprises a suction space (12) opening in a direction facing the tool receptacle (8) side. The suction space (12) has a separator wall (13) between the tool receptacle (8) and the bearing unit (5) to prevent contamination of the bearing unit (5). The wall divides the suction space (12) into a dirty space (14) that opens facing the tool receptacle (8) and an adjacent driver space (15) that opens to the opposing side.

Abstract: A drill stand for a portable core drill has a base plate (2) with an elongate opening (3) for securing the base plate (2) on a workpiece and with at least one reinforcing chamber (8a, 8b) that is closed along its edges extending parallel to the longitudinal axis (A) of the annular core bit of the core drill.

Abstract: A grinding wheel has a flat, circular carrier surface (1) on which a plurality of elongated grinding members (2) are arranged running least partially radially. A discharge opening (3) is disposed ahead of each of the grinding members (2) in the circumferential direction (U). Furthermore, the carrier surface (1) has a basically truncated conical central depression (4) facing away from the grinding members (2). The discharge openings (3) abut the L-shaped grinding members (2) in a direction of rotation (D) and extend approximately over the entire length of the grinding members (2).

Abstract: A grinding device comprising a motor (2) driven drive shaft (4) projecting from a housing (1). The drive shaft (4) passes through a bearing unit (5). A tool receptacle (8) is provided at a free end (7) of the drive shaft (4) for removably attaching a tool (9), in particular a grinding wheel. A suction hood (11) abuts the housing (1) and encloses the free end (7) of the drive shaft (4). The suction hood (11) comprises a suction space (12) opening in a direction facing the tool receptacle (8) side. The suction space (12) has a separator wall (13) between the tool receptacle (8) and the bearing unit (5) to prevent contamination of the bearing unit (5). The wall divides the suction space (12) into a dirty space (14) that opens facing the tool receptacle (8) and an adjacent driver space (15) that opens to the opposing side.

Abstract: A grinding tool comprising a housing (1) and a motor-driven driver spindle (2) equipped with a tool receptacle (4) at a free end (3) projecting from the housing (1). An extraction hood (5) is connected to the housing (1), encloses the free end (3) of the driver spindle (2) and open towards the tool receptacle (4). The extraction hood (5) comprises an upper part (6) and a bottom part (7) connected therewith and opening towards the tool receptacle (4). The upper part (6) is pivotable about the longitudinal axis (L) of the driver spindle (2) and is mounted on the housing (1) immovably oriented with the longitudinal direction (L).

Abstract: The present invention relates to a closing cap for a hose and having two cap parts (3a, 3b) sealingly coaxially engageable into each other, and a locking member (4) having a plurality of locking detent elements (5a, 5b) formed integrally with one of the cap parts (3a), and an indentation (6) provided in another of two cap parts (3b) and into which the detent elements (5a, 5b) engage.

Abstract: A dust protection cover for a rotary grinding tool and having a base (1, 11, 21) fixedly securable with the tool housing (10) a substantially circular cover body (2, 12, 22) connectable with the base (1, 11, 21) for completely circumferentially covering the grinding disc (4, 14, 24) securable at the free end of the output shaft of the tool drive motor, and displaceable between a operational position, in which the cover body completely covers the grinding disc, and a release position in which the cover body exposes a portion of a grinding disc circumference, and a connection element(s) projecting from a side of the base (1, 11, 21) adjacent to the tool housing for securing the cover body (2, 12, 22) to the base (1, 11, 21) in the release position of the cover body.

Abstract: A suction device for a hand-held tool having a plate-like working tool, the section device including a hood-shaped housing covering a rear side of the tool (4) and partially a working tool circumference and connectable with a device for creating vacuum, and a protective screen (3) formed of a flexible material and extending along a circumference of a free end surface of the housing (2) and projecting axially above the free end surface, with the protective screen (3) having a plurality of slots (31) distributed along a circumferential extent of the protective screen (3) and opening toward a free end of the protective screen (3).